3K0K	Protein Binding	date	Sep 24, 2009
title	Crystal Structure Of Brca1 Brct In Complex With A Minimal Re Tetrapeptide With A Free Carboxy C-Terminus.
authors	S.J.Campbell, R.A.Edwards, J.N.Glover
compound		source
Molecule: Breast Cancer Type 1 Susceptibility Protein Chain: A Fragment: Brct Domain (Unp Residues 1646 To 1859) Synonym: Ring Finger Protein 53 Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Brca1, Rnf53 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Gold Expression_system_vector_type: Plasmid Expression_system_plasmid: Plm1-Cd6
Molecule: Phospho Peptide Psptf-Cooh Chain: B Engineered: Yes		Synthetic: Yes Organism_taxid: 9606 Other_details: This Sequence Occurs Naturally In Humans In Protein Abraxasccdc98. The Peptide Is Chemically Synthesiz
symmetry	Space Group: P 61 2 2	R_factor 0.259 R_Free 0.299
crystal cell	length a length b length c angle alpha angle beta angle gamma 114.422 114.422 123.005 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand	CL, NI, SEP	enzyme
Primary reference	Comparison of the structures and peptide binding specificities of the BRCT domains of MDC1 and BRCA1., Campbell SJ, Edwards RA, Glover JN, Structure. 2010 Feb 10;18(2):167-76. PMID:20159462

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (41 Kb) [Save to disk] Biological Unit Coordinates (3k0k.pdb1.gz) 36 Kb LPC: Ligand-Protein Contacts for 3K0K CSU: Contacts of Structural Units for 3K0K Structure Factors (204 Kb) Retrieve 3K0K in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3K0K from S2C, [Save to disk] Re-refined 3k0k structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3K0K in 3D

Proteopedia, because life has more than 2D. On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure. On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz. On AstexViewer, from MSD-EBI (viewer documentation). On RasMol (Install RasMol freeware) Here's help on how to use RasMol.

Visual 3D analysis of 3K0K

Cartoon representation from PDB Cartoon Ramachandran plot from PDBSum

Structure-derived information

Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute Crystal Contacts, from CryCo at Weizmann Institute 3D motif for 3K0K, from MSDmotif at EBI Fold representative 3k0k from FSSP and Dali (Families of Structurally Similar Proteins)

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3k0k_A] [3k0k_B] SWISS-PROT database: Domain organization of by SWISSPFAM Alignments of the sequence of 3K0K with the sequences similar proteins can be viewed for 3K0K's classification at ProtoMap. Click on "Neighbors List", then on the "See Alignments" button below the list. A sequence distance tree ("phylogenetic tree") can be viewed for 1ACL's classification at ProtoMap. Click on the Cluster number.

Other resources with information on 3K0K

Community annotation for 3K0K at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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